Avia B-122

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Avia B-122
Avia B-122
Avia B-122
Type: Sport plane
Design country:

Czechoslovakia 1920Czechoslovakia Czechoslovakia

Manufacturer:

Avia

First flight:

1934

Production time:

1936-1938

Number of pieces:

> 100

The Avia B-122 was a Czechoslovak aerobatic aircraft of the 1930s. During this time it took part in several international competitions, in which it was also quite successful.

history

The aircraft was designed by František Novotny as a biplane with wooden wings and a tubular steel fuselage. The cladding in the bow area was made of sheet steel, the rest of the aircraft was covered with fabric.

The first prototype with the registration number OK-AVI flew for the first time in the spring of 1934, equipped with a seven-cylinder radial engine Walter Castor . The OK-AVE followed a little later with modified oars and a Castor II engine with NACA canopy . Numerous aerobatic competitions were contested with this machine.

The Czechoslovak armed forces ordered 45 machines with the military designation Bs-122 , which were also delivered.

In 1936 the improved Ba-122 appeared with the more powerful Avia-Rk-17 engine. A total of six aircraft of the type took part in the aerobatics competition at the Zurich meeting in 1937. Three with the Avia engine started in class B (aircraft with engines of 10–20 l displacement). Lt. František Novák first place, Lt. Petr Siroký the third and adj. Josef Hubáček the fourth. The other three Ba-122 , which had nine-cylinder Walter Pollux as a drive, won in class C (engines of over 20 l displacement) with the Lt. Novák and Siroký as well as Adj. Vyborní took the three places, although they had no other competitors.

The Czechoslovak military ordered 35 of this type, 15 more went to the Soviet Air Force .

After the occupation of the ČSR by German troops, the installed government took over twelve Ba-122 and Bs-122, twelve more went to Bulgaria . The successor models were the special competition version B-222 , the B-322 with a closed cockpit and the B-422 , in which the upper wing was offset downwards and connected directly to the fuselage.

Military users

Avia Ba-122 in the Kbely Aviation Museum
Bulgaria 1908Bulgaria Bulgaria
German Reich NSGerman Reich (Nazi era) German Empire
  • Air Force : 12 taken over by the Czechoslovak Air Force after the occupation
Romania kingdomRomania Romania
Slovakia 1939Slovakia Slovakia
  • Slovak Air Force
Soviet Union 1923Soviet Union Soviet Union
Czechoslovakia 1920Czechoslovakia Czechoslovakia

Technical specifications

Three-sided tear
Parameter Data (Avia Ba-122)
crew 1
span 8.85 m
length 6.80 m
height 2.90 m
Wing area 21.55 m²
Empty mass 861 kg
Takeoff mass 1081 kg
drive an air-cooled seven - cylinder radial engine Rk-17 with 265 kW (360 PS) or
an air-cooled nine-cylinder radial engine Walter Pollux II with 290 kW (approx. 390 PS)
Top speed 270 km / h
Cruising speed 230 km / h
Summit height 7000 m
Range 460 km

See also

literature

  • C. G. Gray: Jane's All the World's Aircraft 1938 . David & Charles, London 1972, ISBN 0-7153-5734-4 , pp. 89c-90c .

Web links

Commons : Avia B-122  - Collection of images, videos and audio files